212021032103 has 4 divisors (see below), whose sum is σ = 213443992200. Its totient is φ = 210598072008.

The previous prime is 212021032099. The next prime is 212021032109. The reversal of 212021032103 is 301230120212.

212021032103 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 212021032103 - 2² = 212021032099 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212021032109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 711479825 + ... + 711480122.

It is an arithmetic number, because the mean of its divisors is an integer number (53360998050).

Almost surely, 2^212021032103 is an apocalyptic number.

212021032103 is a deficient number, since it is larger than the sum of its proper divisors (1422960097).

212021032103 is a wasteful number, since it uses less digits than its factorization.

212021032103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1422960096.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 212021032103 its reverse (301230120212), we get a palindrome (513251152315).

The spelling of 212021032103 in words is "two hundred twelve billion, twenty-one million, thirty-two thousand, one hundred three".